WatchGuard Fireware OS and SSL VPN client affected by vulnerabilities
Original title: WatchGuard security advisory (AV26-1094)
Canada’s October 28 notice lists Fireware OS and Mobile VPN with SSL Client builds before 2026.4 and 12.0, without naming CVEs.
The Canadian Centre for Cyber Security published advisory AV26-1094 on October 28, 2026. As of October 27, WatchGuard Fireware OS, described only as multiple versions, and Mobile VPN with SSL Client releases before 2026.4 and before 12.0 are affected by vulnerabilities. The centre tells users and administrators to review WatchGuard’s advisories and apply updates as they become available. It does not describe impact or exploitation.
Unconfirmed: The notice does not name the vulnerabilities, their impact, fixed builds, or whether they are exploited.
- The notice is serial AV26-1094 and dated October 28, 2026.
- WatchGuard was affected as of October 27, 2026.
- Mobile VPN with SSL Client versions before 2026.4 and before 12.0 are listed.
- Fireware OS is listed only as multiple versions.
| Product | Affected |
|---|---|
| WatchGuard Fireware OS | Multiple versions |
| WatchGuard Mobile VPN with SSL Client | Prior to 2026.4; prior to 12.0 |
- 1.Review WatchGuard’s security advisories and apply updates as they become available.
- Vendors
- WatchGuard
- Organizations
- Canadian Centre for Cyber Security
- Countries
- Canada
From the original article
1 min read at cyber.gc.ca
Serial number: AV26-1094 Date: October 28, 2026 As of October 27, 2026, WatchGuard is affected by vulnerabilities in the following products: Fireware OS Multiple versions Mobile VPN with SSL Client Prior to 2026. 4 Prior to 12. 0 The Cyber Centre encourages users and administrators to review the provided web link and apply any necessary updates as they become available.
cyber.gc.ca
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